Download Kepler`s Laws wkst

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ADDITIONAL PRACTICE
1. The period of Mars’ rotation is 24 hours, 37 minutes, and 23 seconds. At what altitude above Mars would a “Mars-stationary”
satellite orbit?
2. Pluto’s moon, Charon, has an orbital period of 153 hours. How far is Charon from Pluto?
3. The orbital radius of a satellite in geostationary orbit is 4.22  107 m (see sample problem on previous page). What is the orbital
speed of a satellite in geostationary orbit?
4. Earth’s moon orbits Earth at a mean distance of 3.84  108 m. What is the moon’s orbital speed?
5. Earth’s moon orbits Earth at a mean distance of 3.84  108 m. What is the moon’s orbital period? Express your answer in Earth
days.
6. Use data from Table 1 in your textbook to calculate the length of Neptune’s “year” (the period of its orbit around the Sun).
Express your answer in Earth years.
7. The asteroid (45) Eugenia has a small moon named S/1998(45)1. The moon orbits Eugenia once every 4.7 days at a distance of
1.19  103 km. What is the mass of (45) Eugenia?
8. V404 Cygni is a dark object orbited by a star in the constellation Cygnus. Many astronomers believe the object is a black hole.
Suppose the star’s orbit has a mean radius of 2.30  1010 m and a period of 6.47 days. What is the mass of the black hole? How
many times larger is the mass of the black hole than the mass of the sun?
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